When selecting emitters for a drip system, water quality is a factor to consider which statement is true?

• A. Water quality is a factor to consider when selecting emitters.
• B. Water quality is irrelevant.
• C. Only pH matters.
• D. Water quality only matters for overhead sprinklers.

Answer: (A)

Water quality directly affects how emitters perform and how long they last in a drip system. Particulates, sediments, mineral content, and chemical constituents can clog or foul emitters, change flow rates, or even damage components. Because drip systems rely on small-orifice emitters, everything carried by the irrigation water—sand, silt, algae, hardness (calcium and magnesium), iron, sulfate, and chlorination byproducts—can influence reliability. That’s why emitter selection should consider not just flow and pressure, but also how the water behaves with those emitters: Will filtration be enough to keep debris out? Are there emitter designs that tolerate more sediment or are easier to flush? Is the water’s chemistry compatible with the emitter materials and any additives used (fertigation, acidification, etc.)?

Saying water quality is irrelevant, or that only pH matters, or that it only affects overhead sprinklers, overlooks the practical reality that drip emitters are particularly prone to clogging and chemical interactions. Recognizing water quality as a factor helps you design a more reliable system with appropriate filtration, maintenance, and emitter choice.